<template>
  <div v-loading="loading">
    <div class="content-title">
      <span>产品类别设置</span>
    </div>
    <div class="product-setting">
      <div class="tips">注：产品类别最多设置20级</div>
      <div class="product-setting-con">
        <div>
          <span
              class="el-icon-plus"
              style="color: #409EFF;"/>
          <el-button link @click="handleTreeSetDrop({type:'create-one'})">
            新增一级分类
          </el-button>
        </div>
        <div class="tree-box">
          <el-tree
              :data="treeData"
              :props="defaultProps"
              default-expand-all>
            <!--            <flexbox slot-scope="{ node, data }" class="node-data">-->
            <flexbox #default="{ node, data }" class="node-data">
              <img
                  v-if="node.expanded"
                  class="node-img"
                  src="/src/assets/img/fold.png">
              <img
                  v-if="!node.expanded"
                  class="node-img"
                  src="/src/assets/img/unfold.png">
              <div class="node-label">{{ node.label }}</div>
              <el-dropdown
                  v-if="node.level < maxCreateLevel"
                  trigger="click"
                  @command="handleTreeSetDrop">
                <div
                    class="node-label-set"
                    @click.stop="getChild(node)">设置
                </div>
                <template v-slot:dropdown>
                  <el-dropdown-menu>
                    <el-dropdown-item v-for="(item, index) in treeSetTypes" :key="index" :command="item">
                      {{ item.name }}
                    </el-dropdown-item>
                  </el-dropdown-menu>
                </template>
              </el-dropdown>
            </flexbox>
          </el-tree>
        </div>
      </div>
    </div>
    <el-dialog
        :visible.sync="productHandleDialog"
        :close-on-click-modal="false"
        title="提示"
        width="400px">
      <el-form :model="productForm">
        <el-form-item
            label="类别名称"
            label-width="80">
          <el-input
              :maxlength="20"
              v-model="productForm.name"
              autocomplete="off"/>
        </el-form-item>
      </el-form>
      <template v-slot:footer>
        <div class="dialog-footer">
          <el-button @click="productHandleDialog = false">取 消</el-button>
          <el-button type="primary" @click="handleProduct">确 定</el-button>
        </div>
      </template>
    </el-dialog>
  </div>
</template>

<script>
import {
  productCategoryIndexAPI,
  productCategorySaveAPI,
  productCategoryDeleteAPI
} from '/src/api/admin/crm.js'

export default {
  name: 'ProductCategorySet',

  components: {},

  data() {
    return {
      loading: false, // 展示加载中效果

      // 产品类别设置
      treeData: [],
      /** 更多操作 */
      treeSetTypes: [],
      // 最大可创建20级
      maxCreateLevel: 20,
      // 编辑产品弹窗
      productHandleDialog: false,
      productForm: {name: '', type: '', pid: '', categoryId: ''},
      defaultProps: {
        children: 'children',
        label: 'label'
      }
    }
  },

  created() {
    this.getProductCategoryIndex()
  },

  methods: {
    /**
     * 产品类别设置
     */
    getChild(node) {
      var temps = [
        {type: 'create-child', name: '新建子分类'},
        {type: 'create-brother', name: '新建平级分类'},
        {type: 'edit', name: '编辑分类'},
        {type: 'delete', name: '删除分类'}
      ]
      this.treeSetTypes = temps.map(function (item, index, array) {
        item['node'] = node
        return item
      })
    },

    /**
     * 产品操作
     */
    handleTreeSetDrop(command) {
      if (command.type == 'create-one') {
        this.productForm.type = command.type
        this.productForm.name = ''
        this.productHandleDialog = true
      }
      if (command.type == 'create-child') {
        this.productForm.type = command.type
        this.productForm.pid = command.node.data.categoryId
        this.productForm.name = ''
        this.productHandleDialog = true
      } else if (command.type == 'create-brother') {
        this.productForm.type = command.type
        this.productForm.pid = command.node.data.pid
        this.productForm.name = ''
        this.productHandleDialog = true
      } else if (command.type == 'edit') {
        this.productForm.type = command.type
        this.productForm.name = command.node.data.name
        this.productForm.categoryId = command.node.data.categoryId
        this.productForm.pid = command.node.data.pid
        this.productHandleDialog = true
      } else if (command.type == 'delete') {
        this.$confirm('确定删除?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        })
            .then(() => {
              this.loading = true
              productCategoryDeleteAPI({
                id: command.node.data.categoryId
              })
                  .then(res => {
                    this.$message({
                      type: 'success',
                      message: '删除成功!'
                    })
                    this.getProductCategoryIndex()
                    this.loading = false
                  })
                  .catch(() => {
                    this.loading = false
                  })
            })
            .catch(() => {
              this.$message({
                type: 'info',
                message: '已取消删除'
              })
            })
      }
    },

    /**
     * 产品类别操作
     */
    handleProduct() {
      if (this.productForm.name.length == 0) {
        this.$message({
          message: '请填写名称',
          type: 'warning'
        })
        return
      }
      this.productHandleDialog = false
      if (this.productForm.type == 'create-one') {
        this.loading = true
        productCategorySaveAPI({
          name: this.productForm.name
        })
            .then(res => {
              this.getProductCategoryIndex()
              this.$message.success('新增成功')
              this.loading = false
            })
            .catch(() => {
              this.loading = false
            })
      } else if (this.productForm.type == 'create-child') {
        this.loading = true
        productCategorySaveAPI({
          pid: this.productForm.pid,
          name: this.productForm.name
        })
            .then(res => {
              this.getProductCategoryIndex()
              this.$message.success('新建成功')
              this.loading = false
            })
            .catch(() => {
              this.loading = false
            })
      } else if (this.productForm.type == 'create-brother') {
        this.loading = true
        productCategorySaveAPI({
          pid: this.productForm.pid,
          name: this.productForm.name
        })
            .then(res => {
              this.getProductCategoryIndex()
              this.$message.success('新建成功')
              this.loading = false
            })
            .catch(() => {
              this.loading = false
            })
      } else if (this.productForm.type == 'edit') {
        this.loading = true
        productCategorySaveAPI({
          categoryId: this.productForm.categoryId,
          pid: this.productForm.pid,
          name: this.productForm.name
        })
            .then(res => {
              this.getProductCategoryIndex()
              this.$message.success('编辑成功')
              this.loading = false
            })
            .catch(() => {
              this.loading = false
            })
      }
    },

    /**
     * 获取产品分类数据
     */
    getProductCategoryIndex() {
      this.loading = true
      productCategoryIndexAPI({
        type: 'tree'
      })
          .then(res => {
            this.loading = false
            this.treeData = res.data
          })
          .catch(() => {
            this.loading = false
          })
    }
  }
}
</script>

<style rel="stylesheet/scss" lang="scss" scoped>
.content-title {
  padding: 10px;
  border-bottom: 1px solid #e6e6e6;
}

.content-title > span {
  display: inline-block;
  height: 36px;
  line-height: 36px;
  margin-left: 20px;
}

/* 产品类别设置 */
.product-setting {
  flex: 1;
  display: flex;
  flex-direction: column;
  margin: 30px;
  position: relative;
}

.tree-box {
  overflow: auto;
}

.tree-box :deep( .el-tree-node__expand-icon) {
  display: none;
}

.tree-box :deep( .el-tree-node__content) {
  margin-bottom: 10px;
}

.node-data {
  font-size: 13px;

  .node-img {
    width: 15px;
    height: 15px;
    display: block;
    margin-right: 8px;
  }

  .node-label:hover {
    background-color: #ededed;
  }

  .node-label-set {
    margin-left: 8px;
    font-size: 12px;
    color: $xr-color-primary;
    display: none;
  }
}

.node-data:hover .node-label-set {
  display: block;
}

.product-setting-con {
  position: absolute;
  top: 20px;
  right: 0;
  bottom: 0;
  left: 0;
  overflow: auto;
}

.tips {
  color: #999;
  font-size: 13px;
}
</style>
